3 papers
gr-qc2020
Spherical Accretion Flow onto General Parameterized Spherically Symmetric Black Hole Spacetimes
Sen Yang, Cheng Liu, Tao Zhu +4
The transonic phenomenon of black hole accretion and the existence of the photon sphere are the characteristics of strong gravitational fields near a black hole horizon. In this wo…
gr-qc2020
Thin Accretion Disk around a four-dimensional Einstein-Gauss-Bonnet Black Hole
Cheng Liu, Tao Zhu, Qiang Wu
Recently a novel four-dimensional Einstein-Gauss-Bonnet (4EGB) theory of gravity was proposed by Glavan and Lin [D. Glavan and C. Lin, Phys. Rev. Lett. 124, 081301 (2020)] which in…
gr-qc2019
Background dynamics of pre-inflationary scenario in Brans-Dicke loop quantum cosmology
Manabendra Sharma, Tao Zhu, Anzhong Wang
Recently the background independent nonperturbative quantization technique has been extended to theories of gravity and the corresponding quantum effective cosmology has been deriv…